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JB1 gearbox versus JC5



  Clio
Does anyone know anything about clio gearboxes and ratios?

I have a rally car with a standard 1.4 engine and box, which I have now done two events in.
On the most recent event some of the stages were very tight and twisty and I was using second gear alot. Problem being that second wasn't low enough and if I put it into first it was screaming at me.

I have found a JC5 box from a 172, for sale locally, and it looks like it should just bolt straight on. Does anyone know for definite that it will and also wether the gear ratios on first and second are different enough to make a difference. If not can anyone offer any solution?

Top end speed isn't an issue because I don't plan to do events with lots of straights.

many thanks
 
  BMW M135i
Which Mk/Ph Clio is the car?

A JC5 will fit yes but i'm not convinced the ratios will be different enough but i'd have to look it up.
 
  Clio
Not sure what JB1 i have got but the one Iam looking at I think is a JB1 129 from an 03 172.
thank u for your help
 


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